Puncture-aware low density parity check (LDPC) decoding

摘要

A communication device or device includes a processor that generates and interprets signals that are transmitted and received via a communication interface. The processor receives an LDPC coded signal, via the communication interface, that is generated by puncturing at least one parity bit from another LDPC coded signal that is generated based on an LDPC code characterized by a first LDPC matrix. The processor operates on the first LDPC matrix to generate a second LDPC matrix by excluding at least one column and at least one row from the first LDPC matrix. The number of columns and rows excluded from the first LDPC matrix is based on the number of bits punctured from the other LDPC coded signal to generate the LDPC coded signal. The processor then decodes the LDPC coded signal using the second LDPC matrix to make estimates of information bits encoded within the LDPC coded signal.

主权项

1. A communication device comprising:
a communication interface; and a processor, the processor and communication interface configured to:
receive a low density parity check (LDPC) coded signal, wherein the LDPC coded signal is generated from an other LDPC coded signal that has had at least one parity bit punctured there from, wherein the other LDPC coded signal is generated based on an LDPC code that is characterized by a first LDPC matrix;process the first LDPC matrix to generate a second LDPC matrix by excluding at least one column and at least one row from the first LDPC matrix based on a number of bits of the at least one parity bit punctured from the other LDPC coded signal to generate the LDPC coded signal; anddecode the LDPC coded signal using the second LDPC matrix to make a plurality of estimates of a plurality of information bits encoded within the LDPC coded signal.